# List of members of the National Assembly (South Korea), 1979–1980

This is a list of members of the 10th National Assembly of South Korea which sat from 17 March 1979 to 17 May 1980.

## Members elected in the 1978 election

| Province/city | Constituency | Member | Party |
| Seoul | Jongno–Jung | Jeong Dae-cheol | New Democratic Party |
| Seoul | Jongno–Jung | Min Gwan-sik | Democratic Republican Party |
| Seoul | Dongdaemun | Song Won-yeong | New Democratic Party |
| Seoul | Dongdaemun | Lee In-geun | Democratic Republican Party |
| Seoul | Seongdong | Kim Je-man | New Democratic Party |
| Seoul | Seongdong | Yang Il-dong | Democratic Unification Party |
| Seoul | Seongbuk | Jo Se-hyeong | New Democratic Party |
| Seoul | Seongbuk | Jeong Rae-hyeok | Democratic Republican Party |
| Seoul | Dobong | Go Heung-mun | New Democratic Party |
| Seoul | Dobong | Hong Seong-u | Independent |
| Seoul | Seodaemun | Kim Jae-gwang | New Democratic Party |
| Seoul | Seodaemun | O Yu-bang | Democratic Republican Party |
| Seoul | Mapo–Yongsan | Park Gyeong-won | Democratic Republican Party |
| Seoul | Mapo–Yongsan | No Seung-hwan | New Democratic Party |
| Seoul | Yeongdeungpo | Park Han-sang | New Democratic Party |
| Seoul | Yeongdeungpo | Gang Byeong-gyu | Democratic Republican Party |
| Seoul | Gwanak | Kim Su-han | New Democratic Party |
| Seoul | Gwanak | Jeong Hui-seop | Democratic Republican Party |
| Seoul | Gangnam | Jeong Un-gap | New Democratic Party |
| Seoul | Gangnam | Lee Tae-seop | Democratic Republican Party |
| Seoul | Gangseo | Nam Jae-hui | Democratic Republican Party |
| Seoul | Gangseo | Kim Yeong-bae | New Democratic Party |
| Busan | Jung–Yeongdo | Ye Chun-ho | Independent |
| Busan | Jung–Yeongdo | Kim Sang-jin | New Democratic Party |
| Busan | Seo–Dong | Kim Young-sam | New Democratic Party |
| Busan | Seo–Dong | Park Chan-jong | Democratic Republican Party |
| Busan | Busanjin–Buk | Jeong Hae-yeong | New Democratic Party |
| Busan | Busanjin–Buk | Kim Im-sik | Democratic Republican Party |
| Busan | Dongnae | Lee Gi-taek | New Democratic Party |
| Busan | Dongnae | Yang Chan-u | Democratic Republican Party |
| Busan | Nam | Kim Seung-mok | New Democratic Party |
| Busan | Nam | Kim Jae-hong | Democratic Republican Party |
| Gyeonggi Province | Incheon | Kim Eun-ha | New Democratic Party |
| Gyeonggi Province | Incheon | Ryu Seung-won | Democratic Republican Party |
| Gyeonggi Province | Suwon–Hwaseong | Lee Byeong-hui | Democratic Republican Party |
| Gyeonggi Province | Suwon–Hwaseong | Yu Yong-geun | New Democratic Party |
| Gyeonggi Province | Uijeongbu–Yangju–Paju | Park Myeong-geun | Democratic Republican Party |
| Gyeonggi Province | Uijeongbu–Yangju–Paju | Kim Hyeong-gwang | New Democratic Party |
| Gyeonggi Province | Seongnam–Gwangju–Yeoju–Icheon | Jeong Dong-seong | Democratic Republican Party |
| Gyeonggi Province | Seongnam–Gwangju–Yeoju–Icheon | O Se-eung | Independent |
| Gyeonggi Province | Pyeongtaek–Yongin–Anseong | Yu Chi-song | New Democratic Party |
| Gyeonggi Province | Pyeongtaek–Yongin–Anseong | Seo Sang-rin | Democratic Republican Party |
| Gyeonggi Province | Bucheon–Anyang–Siheung–Ongjin | Lee Taek-don | New Democratic Party |
| Gyeonggi Province | Bucheon–Anyang–Siheung–Ongjin | Yun Guk-no | Democratic Republican Party |
| Gyeonggi Province | Goyang–Gimpo–Ganghwa | O Hong-seok | New Democratic Party |
| Gyeonggi Province | Goyang–Gimpo–Ganghwa | Kim Yu-tak | Democratic Republican Party |
| Gyeonggi Province | Yeoncheon–Pocheon–Gapyeong–Yangpyeong | O Chi-seong | Democratic Republican Party |
| Gyeonggi Province | Yeoncheon–Pocheon–Gapyeong–Yangpyeong | Cheon Myeong-gi | New Democratic Party |
| Gangwon Province | Chuncheon–Chunseong–Cheolwon–Hwacheon–Yanggu | Son Seung-deok | Democratic Republican Party |
| Gangwon Province | Chuncheon–Chunseong–Cheolwon–Hwacheon–Yanggu | Kim Jun-seop | New Democratic Party |
| Gangwon Province | Wonju–Wonseong–Hongcheon–Hoengseong | Park Yeong-rok | New Democratic Party |
| Gangwon Province | Wonju–Wonseong–Hongcheon–Hoengseong | Kim Yong-ho | Democratic Republican Party |
| Gangwon Province | Gangneung–Myeongju–Samcheok | Kim Hyo-yeong | Democratic Republican Party |
| Gangwon Province | Gangneung–Myeongju–Samcheok | Kim Jin-man | Independent |
| Gangwon Province | Sokcho–Yangyang–Inje–Goseong | Jeong Il-gwon | Democratic Republican Party |
| Gangwon Province | Sokcho–Yangyang–Inje–Goseong | Ham Jong-bin | Independent |
| Gangwon Province | Yeongwol–Pyeongchang–Jeongseon | Jang Seung-tae | Democratic Republican Party |
| Gangwon Province | Yeongwol–Pyeongchang–Jeongseon | Eom Yeong-dal | New Democratic Party |
| North Chungcheong Province | Cheongju–Cheongwon | Kim Hyeon-su | Democratic Unification Party |
| North Chungcheong Province | Cheongju–Cheongwon | Lee Min-u | New Democratic Party |
| North Chungcheong Province | Chungju–Jungwon–Jecheon–Danyang | Lee Jong-geun | Democratic Republican Party |
| North Chungcheong Province | Chungju–Jungwon–Jecheon–Danyang | Lee Taek-hui | New Democratic Party |
| North Chungcheong Province | Boeun–Okcheon–Yeongdong | Yuk In-su | Democratic Republican Party |
| North Chungcheong Province | Boeun–Okcheon–Yeongdong | Lee Yong-hui | New Democratic Party |
| North Chungcheong Province | Jincheon–Gwisan–Eumseong | O Yong-un | Democratic Republican Party |
| North Chungcheong Province | Jincheon–Gwisan–Eumseong | Lee Chung-hwan | New Democratic Party |
| South Chungcheong Province | Dong–Jung, Daejeon | Im Ho | Independent |
| South Chungcheong Province | Dong–Jung, Daejeon | Kim Yong-tae | Democratic Republican Party |
| South Chungcheong Province | Cheonan–Cheonwon–Asan | Kim Jong-cheol | Democratic Republican Party |
| South Chungcheong Province | Cheonan–Cheonwon–Asan | Jeong Jae-won | New Democratic Party |
| South Chungcheong Province | Geumsan–Daedeok–Yeongi | Lee Jun-seop | Democratic Republican Party |
| South Chungcheong Province | Geumsan–Daedeok–Yeongi | Yu Han-yeol | New Democratic Party |
| South Chungcheong Province | Nonsan–Gongju | Jeong Seok-mo | Democratic Republican Party |
| South Chungcheong Province | Nonsan–Gongju | Park Chan | Independent |
| South Chungcheong Province | Buyeo–Seocheon–Boryeong | Kim Jong-pil | Democratic Republican Party |
| South Chungcheong Province | Buyeo–Seocheon–Boryeong | Jo Jung-yeon | New Democratic Party |
| South Chungcheong Province | Cheongyang–Hongseong–Yesan | Jang Yeong-sun | Democratic Republican Party |
| South Chungcheong Province | Cheongyang–Hongseong–Yesan | Han Geon-su | New Democratic Party |
| South Chungcheong Province | Seosan–Dangjin | Sim Hyeon-jik | Democratic Republican Party |
| South Chungcheong Province | Seosan–Dangjin | Han Yeong-su | New Democratic Party |
| North Jeolla Province | Jeonju–Wanju | Lee Cheol-seung | New Democratic Party |
| North Jeolla Province | Jeonju–Wanju | Yu Gi-jeong | Democratic Republican Party |
| North Jeolla Province | Gunsan–Okgu–Iri–Iksan | Kim Hyeon-gi | New Democratic Party |
| North Jeolla Province | Gunsan–Okgu–Iri–Iksan | Chae Yeong-cheol | Democratic Republican Party |
| North Jeolla Province | Jinan–Muju–Jangsu | Kim Gwang-su | Democratic Republican Party |
| North Jeolla Province | Jinan–Muju–Jangsu | Choi Seong-seok | New Democratic Party |
| North Jeolla Province | Imsil–Namwon–Sunchang | Seol In-su | Democratic Republican Party |
| North Jeolla Province | Imsil–Namwon–Sunchang | Son Ju-hang | Independent |
| North Jeolla Province | Jeongeup–Gimje | Jang Gyeong-sun | Democratic Republican Party |
| North Jeolla Province | Jeongeup–Gimje | Kim Won-gi | New Democratic Party |
| North Jeolla Province | Gochang–Buan | Park Yong-gi | Independent |
| North Jeolla Province | Gochang–Buan | Lee Ho-jong | Democratic Republican Party |
| South Jeolla Province | Dong–Seo, Gwangju | Lee Pil-seon | New Democratic Party |
| South Jeolla Province | Dong–Seo, Gwangju | Kim Nok-yeong | Democratic Unification Party |
| South Jeolla Province | Mokpo–Muan–Sinan | Choi Yeong-cheol | Democratic Republican Party |
| South Jeolla Province | Mokpo–Muan–Sinan | Im Jeong-gi | New Democratic Party |
| South Jeolla Province | Yeosu–Yeocheon–Gwangyang | Lee Do-seon | Democratic Republican Party |
| South Jeolla Province | Yeosu–Yeocheon–Gwangyang | Park Byeong-hyo | New Democratic Party |
| South Jeolla Province | Suncheon–Gurye–Seungju | Ryu Gyeong-hyeon | Democratic Republican Party |
| South Jeolla Province | Suncheon–Gurye–Seungju | Heo Gyeong-man | New Democratic Party |
| South Jeolla Province | Naju–Gwangsan | Kim Yun-deok | New Democratic Party |
| South Jeolla Province | Naju–Gwangsan | Han Gap-su | Independent |
| South Jeolla Province | Damyang–Gokseong–Hwasun | Mun Hyeong-tae | Democratic Republican Party |
| South Jeolla Province | Damyang–Gokseong–Hwasun | Go Jae-cheong | New Democratic Party |
| South Jeolla Province | Goheung–Boseong | Sin Hyeong-sik | Democratic Republican Party |
| South Jeolla Province | Goheung–Boseong | Kim Su | Independent |
| South Jeolla Province | Jangheung–Gangjin–Yeongam–Wando | Gil Jeon-sik | Democratic Republican Party |
| South Jeolla Province | Jangheung–Gangjin–Yeongam–Wando | Yun Jae-myeong | Independent |
| South Jeolla Province | Haenam–Jindo | Kim Bong-ho | Democratic Republican Party |
| South Jeolla Province | Haenam–Jindo | Im Yeong-deuk | Independent |
| South Jeolla Province | Yeonggwang–Hampyeong–Jangseong | Kim Jae-sik | Democratic Republican Party |
| South Jeolla Province | Yeonggwang–Hampyeong–Jangseong | Lee Jin-yeon | New Democratic Party |
| North Gyeongsang Province | Jung–Seo–Buk, Daegu | Han Byeong-chae | Independent |
| North Gyeongsang Province | Jung–Seo–Buk, Daegu | Lee Man-seop | Democratic Republican Party |
| North Gyeongsang Province | Dong–Nam, Daegu | Lee Hyo-sang | Democratic Republican Party |
| North Gyeongsang Province | Dong–Nam, Daegu | Sin Do-hwan | New Democratic Party |
| North Gyeongsang Province | Pohang–Yeongil–Ulleung–Yeongcheon | Gwon O-tae | Independent |
| North Gyeongsang Province | Pohang–Yeongil–Ulleung–Yeongcheon | Jo Gyu-chang | New Democratic Party |
| North Gyeongsang Province | Gyeongju–Wolseong–Cheongdo | Park Suk-hyeon | Democratic Republican Party |
| North Gyeongsang Province | Gyeongju–Wolseong–Cheongdo | Park Gwon-heum | New Democratic Party |
| North Gyeongsang Province | Gimcheon–Geumneung–Sangju | Park Jeong-su | Independent |
| North Gyeongsang Province | Gimcheon–Geumneung–Sangju | Jeong Hwi-dong | Independent |
| North Gyeongsang Province | Andong City–Andong County–Uiseong | Kim Sang-nyeon | Democratic Republican Party |
| North Gyeongsang Province | Andong City–Andong County–Uiseong | Park Hae-chung | New Democratic Party |
| North Gyeongsang Province | Gumi–Gunwi–Seongju–Seonsan–Chilgok | Shin Hyun-hwak | Democratic Republican Party |
| North Gyeongsang Province | Gumi–Gunwi–Seongju–Seonsan–Chilgok | Kim Hyeon-gyu | Independent |
| North Gyeongsang Province | Dalseong–Gyeongsan–Goryeong | Park Jun-gyu | Democratic Republican Party |
| North Gyeongsang Province | Dalseong–Gyeongsan–Goryeong | Kim Jong-gi | New Democratic Party |
| North Gyeongsang Province | Yeongdeok–Cheongsong–Uljin | Mun Tae-jun | Democratic Republican Party |
| North Gyeongsang Province | Yeongdeok–Cheongsong–Uljin | Hwang Byeong-u | New Democratic Party |
| North Gyeongsang Province | Yeongyang–Yeongju–Bonghwa | Kim Chang-geun | Democratic Republican Party |
| North Gyeongsang Province | Yeongyang–Yeongju–Bonghwa | Park Yong-man | New Democratic Party |
| North Gyeongsang Province | Mungyeong–Yecheon | Chae Mun-sik | New Democratic Party |
| North Gyeongsang Province | Mungyeong–Yecheon | Gu Beom-mo | Democratic Republican Party |
| South Gyeongsang Province | Masan–Jinhae–Changwon | Park Jong-gyu | Democratic Republican Party |
| South Gyeongsang Province | Masan–Jinhae–Changwon | Hwang Nak-ju | New Democratic Party |
| South Gyeongsang Province | Jinju–Jinyang–Samcheonpo–Sacheon | Gu Tae-hoe | Democratic Republican Party |
| South Gyeongsang Province | Jinju–Jinyang–Samcheonpo–Sacheon | Lee Sang-min | Independent |
| South Gyeongsang Province | Chungmu–Tongyeong–Geoje–Goseong | Choi Jae-gu | Democratic Republican Party |
| South Gyeongsang Province | Chungmu–Tongyeong–Geoje–Goseong | Kim Dong-uk | New Democratic Party |
| South Gyeongsang Province | Ulsan–Ulju | Lee Hu-rak | Independent |
| South Gyeongsang Province | Ulsan–Ulju | Choi Hyeong-u | New Democratic Party |
| South Gyeongsang Province | Uiryeong–Haman–Hapcheon | Kim Sang-seok | Democratic Republican Party |
| South Gyeongsang Province | Uiryeong–Haman–Hapcheon | Lee Sang-sin | New Democratic Party |
| South Gyeongsang Province | Milyang–Changnyeong | Park Il | New Democratic Party |
| South Gyeongsang Province | Milyang–Changnyeong | Ha Dae-don | Democratic Republican Party |
| South Gyeongsang Province | Yangsan–Gimhae | Kim Taek-su | Democratic Republican Party |
| South Gyeongsang Province | Yangsan–Gimhae | Sin Sang-u | New Democratic Party |
| South Gyeongsang Province | Namhae–Hadong | Sin Dong-gwan | Democratic Republican Party |
| South Gyeongsang Province | Namhae–Hadong | Choi Chi-hwan | Independent |
| South Gyeongsang Province | Sancheong–Hamyang–Geochang | No In-hwan | Democratic Republican Party |
| South Gyeongsang Province | Sancheong–Hamyang–Geochang | Kim Dong-yeong | New Democratic Party |
| Jeju Province | Jeju–Bukjeju–Namjeju | Hyeon O-bong | Democratic Republican Party |
| Jeju Province | Jeju–Bukjeju–Namjeju | Byeon Jeong-il | Independent |

## Presidential appointees

The following were appointed on 21 December 1978:
| Member | Party |
| Gal Bong-geun | Yushin Political Comrades Association |
| Go Jae-pil | Yushin Political Comrades Association |
| Kim Bong-gi | Yushin Political Comrades Association |
| Kim Seong-hwan | Yushin Political Comrades Association |
| Kim Se-bae | Yushin Political Comrades Association |
| Kim Yeong-gwang | Yushin Political Comrades Association |
| Kim Yeong-su | Yushin Political Comrades Association |
| Kim Yeong-ja | Yushin Political Comrades Association |
| Kim Ok-yeol | Yushin Political Comrades Association |
| Kim Yong-ho | Yushin Political Comrades Association |
| Kim Yun-hwan | Yushin Political Comrades Association |
| Kim Jong-ha | Yushin Political Comrades Association |
| Kim Ju-in | Yushin Political Comrades Association |
| Park Dong-ang | Yushin Political Comrades Association |
| Park Jun-gyu | Yushin Political Comrades Association |
| Park Hyeon-seo | Yushin Political Comrades Association |
| Park Hyeong-gyu | Yushin Political Comrades Association |
| Paik Too-chin | Yushin Political Comrades Association |
| Baek Yeong-hun | Yushin Political Comrades Association |
| Byeon U-ryang | Yushin Political Comrades Association |
| Seo Yeong-hui | Yushin Political Comrades Association |
| Seon U-ryeon | Yushin Political Comrades Association |
| Song Bang-yong | Yushin Political Comrades Association |
| Sin Gwang-sun | Yushin Political Comrades Association |
| Sin Dong-sun | Yushin Political Comrades Association |
| Sin Beom-sik | Yushin Political Comrades Association |
| Sin Sang-cheol | Yushin Political Comrades Association |
| Sin Sang-cho | Yushin Political Comrades Association |
| Sin Cheol-gyun | Yushin Political Comrades Association |
| Sim Yong-taek | Yushin Political Comrades Association |
| An Gap-jun | Yushin Political Comrades Association |
| O Jun-seok | Yushin Political Comrades Association |
| Yun Sik | Yushin Political Comrades Association |
| Yun Yeo-hun | Yushin Political Comrades Association |
| Yun In-sik | Yushin Political Comrades Association |
| Lee Gyeong-ho | Yushin Political Comrades Association |
| Lee Do-hwan | Yushin Political Comrades Association |
| Lee Dong-won | Yushin Political Comrades Association |
| Lee Myeong-chun | Yushin Political Comrades Association |
| Lee Sang-ik | Yushin Political Comrades Association |
| Lee Seok-je | Yushin Political Comrades Association |
| Lee Sang-geun | Yushin Political Comrades Association |
| Lee Seung-yun | Yushin Political Comrades Association |
| Lee Yang-u | Yushin Political Comrades Association |
| Lee Yeong-geun | Yushin Political Comrades Association |
| Lee Ja-heon | Yushin Political Comrades Association |
| Lee Jeong-seok | Yushin Political Comrades Association |
| Lee Jeong-sik | Yushin Political Comrades Association |
| Lee Jong-ryul | Yushin Political Comrades Association |
| Lee Jong-sik | Yushin Political Comrades Association |
| Lee Jong-chan | Yushin Political Comrades Association |
| Lee Cheol-hui | Yushin Political Comrades Association |
| Lee Hae-won | Yushin Political Comrades Association |
| Jang Gi-seon | Yushin Political Comrades Association |
| Jang Ji-ryang | Yushin Political Comrades Association |
| Jeon Bu-il | Yushin Political Comrades Association |
| Jeon Jeong-gu | Yushin Political Comrades Association |
| Jeong Byeong-hak | Yushin Political Comrades Association |
| Jeong Il-yeong | Yushin Political Comrades Association |
| Jeong Jae-ho | Yushin Political Comrades Association |
| Jeong Hui-chae | Yushin Political Comrades Association |
| Jo Byeong-gyu | Yushin Political Comrades Association |
| Jo Sang-ho | Yushin Political Comrades Association |
| Jo Il-je | Yushin Political Comrades Association |
| Jo Hong-rae | Yushin Political Comrades Association |
| Cheon Byeong-gyu | Yushin Political Comrades Association |
| Choi Gyeong-rok | Yushin Political Comrades Association |
| Choi Dae-hyeon | Yushin Political Comrades Association |
| Choi Yeong-hui | Yushin Political Comrades Association |
| Choi U-geun | Yushin Political Comrades Association |
| Choi Tae-ho | Yushin Political Comrades Association |
| Tae Wan-seon | Yushin Political Comrades Association |
| Han Gi-chun | Yushin Political Comrades Association |
| Han Ok-sin | Yushin Political Comrades Association |
| Han Tae-yeon | Yushin Political Comrades Association |
| Ham Myeong-su | Yushin Political Comrades Association |
| Hyeon Gi-sun | Yushin Political Comrades Association |

## Changes in membership

| Date | Constituency | Incumbent | Party | New member | Party | Party | Notes |
| 4 October 1979 | Seo–Dong, Busan | Kim Young-sam | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent removed on 4 October 1979. No by-election held. |
| 8 October 1979 | Presidential appointees | Kim Seong-hwan | Yushin Political Comrades Association | Ko Gwi-nam | | Yushin Political Comrades Association | Incumbent died on 8 October 1979; replaced by the next member in the list of presidential appointees. |
| 12 December 1979 | Gumi–Gunwi–Seongju–Seonsan–Chilgok, North Gyeongsang Province | Shin Hyun-hwak | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 12 December 1979 upon appointment as Prime Minister of South Korea. No by-election held. |
| 1 April 1980 | Seongdong, Seoul | Yang Il-dong | Democratic Unification | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent died on 1 April 1980. No by-election held. |
| 22 May 1980 | Presidential appointees | Lee Seung-yun | Yushin Political Comrades Association | Nam Jae-han | | Yushin Political Comrades Association | Incumbent resigned on 22 May 1980 upon appointment as Minister of Finance; replaced by the next member in the list of presidential appointees. |
| 4 July 1980 | Jung–Yeongdo, Busan | Ye Chun-ho | New Democratic (elected as Independent) | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 4 July 1980 | Suwon–Hwaseong, Gyeonggi Province | Lee Byeong-hui | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 4 July 1980 | Bucheon–Anyang–Siheung–Ongjin, Gyeonggi Province | Lee Taek-don | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 4 July 1980 | Gangneung–Myeongju–Samcheok, Gangwon Province | Kim Jin-man | Independent | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 4 July 1980 | Buyeo–Seocheon–Boryeong, South Chungcheong Province | Kim Jong-pil | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 4 July 1980 | Jeonju–Wanju, North Jeolla Province | Lee Cheol-seung | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 4 July 1980 | Imsil–Namwon–Sunchang, North Jeolla Province | Son Ju-hang | New Democratic (elected as Independent) | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 4 July 1980 | Dong–Seo, Gwangju, South Jeolla Province | Kim Nok-yeong | Democratic Unification | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 4 July 1980 | Masan–Jinhae–Changwon, South Gyeongsang Province | Park Jong-gyu | Independent (elected as Democratic Republican) | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 4 July 1980 | Ulsan–Ulju, South Gyeongsang Province | Lee Hu-rak | Independent | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 July 1980. No by-election held. |
| 13 August 1980 | Presidential appointees | Choi Gyeong-rok | Yushin Political Comrades Association | Lee Ho-dong | | Yushin Political Comrades Association | Incumbent resigned on 13 August 1980 upon appointment as ambassador of South Korea to Japan; replaced by the next member in the list of presidential appointees. |
| 27 August 1980 | Dongdaemun, Seoul | Song Won-yeong | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Dobong, Seoul | Go Heung-mun | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Gwanak, Seoul | Kim Su-han | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Busanjin–Buk, Busan | Jeong Hae-yeong | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Wonju–Wonseong–Hongcheon–Hoengseong, Gangwon Province | Park Yeong-rok | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Dong–Jung, Daejeon, South Chungcheong Province | Kim Yong-tae | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Cheongyang–Hongseong–Yesan, South Chungcheong Province | Jang Yeong-sun | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Goheung–Boseong, South Jeolla Province | Sin Hyeong-sik | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Jangheung–Gangjin–Yeongam–Wando, South Jeolla Province | Gil Jeon-sik | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Andong City–Andong County–Uiseong, North Gyeongsang Province | Park Hae-chung | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Jinju–Jinyang–Samcheonpo–Sacheon, South Gyeongsang Province | Gu Tae-hoe | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Ulsan–Ulju, South Gyeongsang Province | Choi Hyeong-u | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Sancheong–Hamyang–Geochang, South Gyeongsang Province | Kim Dong-yeong | New Democratic | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Jeju–Bukjeju–Namjeju, Jeju Province | Hyeon O-bong | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 27 August 1980. No by-election held. |
| 27 August 1980 | Presidential appointees | Choi Tae-ho | Yushin Political Comrades Association | Kim Yu-bok | | Yushin Political Comrades Association | Incumbent resigned on 27 August 1980; replaced by the next member in the list of presidential appointees. |
| 4 October 1980 | Jeonju–Wanju, North Jeolla Province | Yu Gi-jeong | Democratic Republican | Seat remained vacant | Seat remained vacant | Seat remained vacant | Incumbent resigned on 4 October 1980. No by-election held. |